Brush encoder with resilient contact strips

A brush encoder comprising:

• a coding plate having conductive traces formed in a predetermined pattern;
• a brush having resilient contact strips which come in sliding contact with said conductive traces of said coding plate, respectively;
• a coding-plate support member and a brush support member which move relative to each other, said coding plate and said brush being fixed to said coding-plate support member and said brush support member, respectively;
• wherein said brush support member includes:
• a support surface to which a base portion of said brush is mounted;
• through slots formed adjacent to said support surface to extend parallel to each other in a longitudinal direction of said coding plate, said resilient contact strips of said brush extend toward said coding-plate support member through said through slots to come into sliding contact with said conductive traces, respectively;
• and
• at least one insertion slot which is formed between said base portion and said through slots and in which an end of said base portion which is adjacent to said resilient contact strips is partly inserted;
• wherein said brush is biased to rotate about said at least one insertion slot in a direction to make said base portion contact said support surface when said resilient contact strips are pressed against said coding plate so as to be elastically deformed thereby.